title: [The retrospective analysis of good and poor results of the intertrochanteric osteotomy for hip osteoarthritis].
abstract: OBJECTIVE
  To predict the final result of intertrochanteric osteotomy.
  
  
  METHODS
  56 hips in 53 patients after intertrochanteric osteotomy without any change in neck-shaft angle were enrolled into the analysis. 26 hips with a good result of intertrochanteric osteotomy were included into A group and 26 hips with a poor result were included into B group. The follow up was 5 to 11 years. Such preoperative parameters as: age and body weight of patients, severity of arthritis, sphericity of the head, joint space width, center-edge angle, pain severity, walking capacity, range of motion- were analyzed in both groups of patients. Survival of the hips was estimated with a Kaplan-Meyer survival curve.
  
  
  RESULTS
  At last follow up 27 hips (26 patients) were converted into hip prosthesis. The mean operative age of the patients in group A was 37.8 years and in group B 43.4 years. The severity of hip arthritis was similar in both groups of patients. Regular spherical head was found in 10 hips of group A and in 12 of B group. The center-edge angle was 15 degrees in group A and 18 degrees in group B. The joint space width was 2.6 mm in group A, and 2.5 mm in B group. Walking capacity, pain severity, range of motion of the affected hip was very similar in both groups of patients. Patients of group B had hip prosthesis already implanted 2.8 years after osteotomy.
  
  
  CONCLUSIONS
  No statistically significant difference was found between analyzed preoperative parameters in patients with good and poor results of intertrochanteric osteotomy. The final result of intertrochanteric osteotomy is not predictable.
authors.affiliation: Klinika Ortopedii i Traumatologii, Uniwersytet Medyczny im. Karola Marcinkowskiego w Poznaniu. wika@esculap.pl
authors.forename: Wiesław
authors.initials: W
authors.lastname: Kaczmarek
authors.forename: Przemysław
authors.initials: P
authors.lastname: Ceglarz
authors.forename: Jakub
authors.initials: J
authors.lastname: Kucharski
authors.forename: Patryk
authors.initials: P
authors.lastname: Nikratowicz
authors.forename: Andrzej
authors.initials: A
authors.lastname: Pucher
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Pietrzak
mesh_terms: D000077:Acetabulum / Q000601:surgery; D000328:Adult; D005260:Female; D005270:Femur Head / Q000601:surgery; D005271:Femur Head Necrosis / Q000000981:diagnostic imaging / Q000601:surgery; D005500:Follow-Up Studies; D006618:Hip Dislocation, Congenital / Q000150:complications / Q000601:surgery; D006801:Humans; D016916:Joint Deformities, Acquired / Q000150:complications / Q000601:surgery; D008297:Male; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000000981:diagnostic imaging* / Q000601:surgery*; D010027:Osteotomy / Q000009:adverse effects* / Q000379:methods*; D010147:Pain Measurement; D011044:Poland; D011859:Radiography; D012189:Retrospective Studies; D012720:Severity of Illness Index; D018709:Statistics, Nonparametric; D016896:Treatment Outcome; D016138:Walking